Merge pull request #48 from wtsi-npg/devel

iRODS reference_zone -> reference_path bugfix
Allow 10 or 11 digits in Illumina beadchip number, and add tests
Modify Infinium publisher to accept 10 or 11 digit barcodes, and update tests
Merge pull request #292 from iainrb/devel

Allow 10 or 11 digits in Illumina beadchip number